Red Velvet debuted Aug 1st, 2014 Irene 🩷 Mar 29 91 Main Rapper Lead Dancer Leader 🩷 Seulgi 💛 Feb 10 94 Main Dancer Lead Vocal 💛 Wendy 💙 Feb 21 94 Main Vocal 💙 Joy 💚 Sep 3 96 Lead Rapper Vocal 💚 Yeri 💜 Mar 5 99 Rapper Vocal Maknae 💜 (joined them in March of 2015 with their first mini album Ice Cream Cake) Irene and Seulgi have a subunit with an ep "Monster" Wendy has two solo ep's, "Like Water" and "Wish You Hell" Joy has a solo ep "Hello" Seulgi has a solo ep "28 Reasons" Irene has a solo debut scheduled this year Yeri has a few solo songs but no official solo debut yet
If you want to get properly slayed by their vocals in real time, as well as get a crash-course in their incredible discography, I cannot recommend their appearance on "Dingo - Killing Voice" enough.